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Winemiller, K., Bonner, T., Brandes, B., Davis, S., King, R., Maidment, D. and Ward, G. (2008) Review of Desk-Top Methods for Establishing Environmental Flows in Texas Rivers and Streams. Texas Commission on Environmental Quality Report, Austin, 30.

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• TITLE: Environmental Flow Assessment Using Water-Sediment Approach at the Sekampung River, Indonesia

  AUTHORS: Endro Prasetyo Wahono, Djoko Legono,   Istiarto, Bambang Yulistiyanto

  KEYWORDS: Water-Sediment, Environmental Flow, River Morphology

  JOURNAL NAME: Open Journal of Modern Hydrology, Vol.4 No.4, October 15, 2014

  ABSTRACT: Environmental issue has been considered more significant in many aspects of engineering decision-making process particularly in river management. There is an increasing effort to conserve functioning of rivers for human use as well as nature, therefore environmental flow assessment has been widely developed. This paper discusses on environmental flow assessment of the Sekampung River, particularly on its middle reach. A new analytical approach based on water-sediment equations was introduced in order to determine a minimum environmental flow at the certain cross section of a river. The result of the new method was then compared with a minimum environmental flow provided by using two hydrological based methods, namely, Tennant and Flow Duration Curve Analysis (FDCA) method. The result shows that the concerned discharge provided by the water-sediment method (3.5 m3/s) is the smallest compare with a minimum environmental flow that is provided by both Tennant (5.7 m3/s) and FDCA method (4.5 m3/s). It is promising that the water-sediment method can be used as a simple approach on preliminary state of environmental flow assessment. The method involves not only water discharge but also its related sediment flow of the river in order to mitigate further ecological and morphological risks.